Combined cap and pressure applying attachment



Jan. 15, 1935. A. A. VARESE COMBINED CAP AND PRESSURE APPLYING ATTACHMENT Filed NOV. 3, 1933 which fallwithin the Patented Jan. V15, 1935 I w f UNITED. STATES ,PA-TENT. OFFICEv cMBmE CAP'ANn PRESSURE l ...ATTACHMENT l Antimn'y'A. varese,o1ricago',l11i;{ I n 'AppliatgNovember 3, y15333,jserieirNc..saliste ff" sclaims. (c1'.\2r:zov24 lA invention-relates to a 4vcombined cap and pressure applying attachment for the fueltanks of .automotive vehicles,.and has for its object to provide', ini'lamanneras hereinafter setA forth, l

anattachment of the class referred to `for applying fluid pressure to the fuel tank forthe purpose of cleaning the fuel'feed line; for relling vacuumtankswhen "dry: forforcing fuel to a carburetor'whennecessary; fand for cleaning out a carburetor.y z

A further object-of the invention is -to provide, ina manner ashereinafter set forth, anv attachment cfg-the vclass referredfto forapplying fiuid pressure :to a fuel tank for Athe purpose of cleaning out-foreign 4matter/clogging up a fuel feed line r.Without the necessity of` disassembling-the latter. t t

- n A furtherv cbject of the. invention is to pr'vide,

ina manneras. hereinafter set forth, a combined cap and vpressure applying attachment. capable lof functioning 'as the capfnfor a-fuel tank yand including a shiftable,` normally Lopen vvent or `re lief element for vthe introduction of: atmospheric pressure to thetank,.and with theivent or. ref lief element capable of beingshiftedautomatically to closed position by and onuthe application to the tank of fluid pressure to prevent Athe exhausting `of the latter. g c,

-A further object of the invention is to pro-y vide, yin a manner as 'hereinafter set forth,v a combined cap and pressurei applying attachment for fuel tanks of automobiles for yapplying fluid pressure to the, tank to force thefuel'from. the latter to the carburetor of the engine when gov ing up steepgrades and when thefuel will not flow through .the-medium 'ofgravity or the like.

Further objects ofthe invention are to provide, in a manner as hereinafter setforth, an attachment of the classl referred to which is simple; in its construction and arrangement, strong, durable, compact, readily connected to thev fuel tank, thoroughly efficient Ain its'puse, convenientlygat? tached to a source of. fluid' pressure, and inexgpensive to-manufacture which may hereinafter appear, lthe-invention consistsof such parts, rand such combination offparts scope ofthe invention as claimed. f f

',In the-drawing: y n Y f Figure `1 is a vertical: sectionaly view of; the attachment as applied to yand forming` ya closure kcap for the filling neck ofa ffueltank. Y l 3 l, FigureZ isa verticalsectional viewof y theattachmenttaken attr-ight' .angles to; 1g and Y y to To the above endsgessentially and togothers,v

'APPLYNG showingthe.vent or reliefelernent in openposiftion in full'lines and in. closed vposition-'in dotted ines. f f L fFigure 3 is a section on line 3-'-3'Figure 1.4 l .Figure 4 isy an inverted viewof the attachment. :..Figure .is a` perspective view ofthe'v ventele The attachment is illustrated Aby way of example as providing a closure cap fora fuel tank-1. `vIt is to` be understood,'how`ever, Ythat "the attachment may or mayynotbe a permanent closure capfr thetank; as it may bev stored in thelvel'i'icle,v and when occasion requires substituted for thedesired period for. the tankzclosure. The tank 1 includes a filling neck 2v formed at' its topy with 'a pai'r vof oppositely disposed spaced inwardly. extending v flanges 3, 4 of curved cross sectionfhaving`- downturnedinner vparts 5.v The flanges constitute keepers for. I:allatchin'g .member to `be hereinafter referredto; I The vspaces between the flanges are indicated at 6 and form clearances topermit yof positioning' the'latching member to coact with the '..fi'anges to couple` "the attachmentto `the neck-2. f .f1

The attachment'includes an annula'rcap mem-` lber'f? formed offa vtop'8 and a rim 9 depending from thelatter.' The top '7..centrally-'thereof'is formed with an?L upset portion" `10 Lof yrectangular contourand adjacent said. portioniiwith' an open-- ing 11.- The upper endof =thelwall of/ opening 11 is countersunk as'atlZ. VThelpo'rtion -10 central; ly of its upper face and at the axis of ltbp 8'is formed withr an enlargement.' 13 provided Y[with an axiallopen'ing .14' for the passa'geof 4fluid pres,L

sure to the tank 1 When the attachment is coupled tothe neck`l2 andzasource of uid pressure. .The inner diameter 'of the rim"9 with respect t'o the y outer "diameter of -the neck 2Ais suchithat theli'n; ner face "fof the willr snugly 'engage' the` outer face f' ofltheneck. Arranged member' 7 and" abutting theinnerlface of top 8. and" rim 9 Vis a'lcompressiblel sealingfele'men't 1:5 'in-.thei'form 'of n14 annulus. When-thel attachment is coupled y e"ck12 .fthe sealing element v15 bears yagainst the* high''parts fof the v flanges 3,5 4 andIv is comi pressed therebyto provide a sealed airtight joint between'lzthe attachmentflandlthe neck." 'When the-'attachment is removed from' theztank,'f.the.l sealing element will lferetain'edv in the cap `mem berby thelatching member to be referred tof anorm'ea integran with thelenmrgement $13 .isztne lower; end of. a tubular' stem 16 havinganenlarged 4lower portion 17,whichisperipherallmthreaded; as

at 18.. Arranged withinthestemlisgainormally closed spring controlledfvalveassembly'19;of a.v

- form vsimilar to that of the well known inflating arms atv 23, 24. The arms are oppositely disposed,` Y, Vand extend at opposite inclinations with respect,u

to each other. The top 22"isin'tlefrecess 25 formed by the upset portion 10. Each of the arms is of like formand consistsA of.- gngupper outwardly inclined part ZQwhichextend's from an end of top 22, a1ower twadly lilindfart 27extending from the lower end of the inclination thereof less than 'chater part 26 andganoutwardly. disposed:'retainingepart'281v extendingzfromf theglower'end otand at'rght angles to the part 27. The parts 28 coact with the edges 29 oil theilanges 3,4 for. the. attachment to. andy in closurepositionwith respect to theneck `lief-'the tanker',` 'l1-hel clearancesy permit "of' the latching member 21 enteringneck 2, after which the. attachment is4 given-a quarter. turn toibring the Aparts28a`to engage `the edges ofthe. flanges.

The arms 23.,l 24.fare,resilient and oil less.` Width thansthatzof the top` 22. .'At the'transverse me,

of. top 22 itis formed-,witlra groove. 20 con.- stituting. a channel.y positioneddirectly. below the V.opening 14,101'. conducting fluid-pressure intothe tank.` groove isopen ateachjendandijnclines downwardlyfrom onetendto the'other end=.there. ofi. 'I'hetlatchingmember 211 is. anchored to. .the `upset, portion-loof top 8 by rivetingitthereto, as atl 3J..` Centrally of` the points off joinderJ of, top 22.with.the arms 23, 24f the memberzl is depressed fasat. 31..'for reinforcing purposes.

j Therap member?, is providedwith. a. Avent or relief. element..32whichfunctionsto admit; air. to

the tank to relieve the vacuum created in the .tank by ytheifeeding of. thefueL therefrom, and also acts as. ay closure to prevent discharge of:` :uid pres- Vaurezffrom the, tank .when` the attachment isin fluidpressure -applying positiomwith respecttothe tank.V .Theelement 32-` furthermore acts to pro, videforihe exhaust of fluid;l pressure l.within the tank, 1 at the.. .end of.. the uuid` pressureS applying operation. 1 n l,

e. '.Iheelement 32 consistsioflasolid valve head-q33 ofpsegmental cross. section and having a fiati upper face 34. Integral at.. its lowery end :withand; arranged: concentrically with; respect to-` .thekupper .face ,amor-head ,3a-isa,reliefmember inthe Vform ofgatube ,35, providedintermediate its;ends,with a portae-andai: its upper, end with anfannular lat,-

eral iange 37.- The .-,tube ,35 isloscdeat itsloweri endlandopenlat its rupperend., Thegelement'z is slidably. mounted ingthe Aopeninglllanliwhen in normalposition issuspended-pfrom the.;1'on, ofgcap :10.1 Thelnormal position of -element32 is as illus.-

trated infull lines,y Figure=2-and permitszoftheY n entrance of -airto and the dischargeofuidvpres- Y surmfrom the tank .through the port/36. When fluidp'ressureeilis supplied to the. tankithejelement 32flisi automatically. shiftedtupwardlyto -thezposiwhen suppliedthrough `'vent the discharged-andato -providef-forthe relief When the attachment is used for applying fluid pressure to the tank for any of the purposes referred to, the stem 16 is connected for the necessary period to a source of fluid pressure and in a manner to open the spring controlled Valve as- V5 sembly 19.

The channel provided by the groove 30 in the latching member 21 will cause the fluid pressure @mel-,4free inlet, to travel in aiuterai diretbu-Lwith-ro'spect to the member 21 whereby it will be applied upon the fuel at spaced pointsI adjacent the axis of the cap member instead ofmbuta single point aligning with `s uclxfaxis. n"1ll'isman-ner` of vapplying the uid pressure facilitates the forcing of the fuelfor any 15 Aoneof purposes referred to. The arrangement of opening 14. ,`the inlet, with respect to membe'r21-V reduces'the clogging up of such opening ,f froml foreign matter within the tank. The member 21 also reduces to a minimum the entrance ci. the: fuel intofstem lrwhen thev fuel" 'splashes within thetank. Owing4 to. therarrangementfof ther iiuid pressure. conducting channelawithI re.,- spect tothe. opening-14 the. fluidpressure willz'be supplied to within the, cap. member.diarnetricalls1 thereof. 3, :.5 ;-1 What I-claimiis:.-. I f V`1-.. Ina combined. closure capeandfuidpressure applying attalchment'ffor-1'\uel.-.tanks` ot automotive vehicles, a cap member having an. axial. opening providing `an inlety for fluidpressure tio/the tank, a normally` closed iluid` pressure supply; controlling valve .structure integralwith. thacap -member'and communicatingwitli` said opening,` and'sa iatching member-within the cap.` member forglatching the latter.v to. the Stank` to. close:` the fuelxnlling. opening for the latter, said latching member having'f-a `partthereof anchoreddirectly: zaigainstfthe.t inner i'aceof' the cap-member,` saidrpart being` formed transversaly.-oi'- that' `i'ace`.;thereofrr opposing the inner!- face: offthe "captwithat fluid pressureconif ducting. channel openingy atfeach-:side'qoffsaid parti-into the cap mcmben a'ndfizn'ositlonedf.directly below and' into whichJsaidlinl'et; opens, andra'n automatically.h4 'shiftable 'combinedl Vreliet,y land closure elen'ient slidably connected'. to` a'ndtde'` Athe-vtank-andIprovLidem-with meansy havlingpromemberJ-.by thecoactionofthe angejywith y.

thecountersunk.portion-.12of the mallgofopenig visions for admitting air-toitheI tank and =to' prei o1-fluid5pt'essurfsg"fronflbkthetanksv 1 3..In acombinedfc re' cap land- ,huid-pressure applying attachment -for` fuel 1 tive vehicles, a cap member having'an axialoponing providing an inlet for uidlfpressurei'tothe tank,-u'a normally clos'e'd-luidipressuresupplylcnf trolling valve-structure integrali with theff'cap member and-y communicating! with saidJv opening,

a latching'lmenberl- 'withini the cap-mem'laerffor filling opening for the latter, said latching member having a stretch thereof secured against the inner face of said cap member, said stretch being formed with a fluid pressure conducting channel opening into the cap member and positioned di-k rectly below and into which said inlet opens, and the said channel being disposed at the transverse median of said stretch and extending fromone side edge to the other side edge of the latter, and an automatically shiftable combined relief and closure element slidably connected to and depending from said cap member.

4. In a combined closure cap and fluid pressure applying attachment for fuel tanks of automotive vehicles, a cap member having an axial opening providing an inlet for fluid-pressure to the tank, a normally closed fluid pressure supply controlling valve structure integral with they cap member and communicating with said opening,

a latching member within the cap member for latching the latter to the tank to close the fuel filling opening for the latter, said latching member having a stretch thereof secured against the inner face of said cap member, said stretch being formed with a iluid pressure conducting channel opening into the cap member and positioned directly below and into which said inlet opens, and said channel being disposed at the transverse median of said stretch, extending from one side edge to the other side edge of the latter and inclining downwardly from one end thereof to the other, and an automatically shiftable combined relief and closure element slidably connected to and depending from said cap member.

5. In a combined closure cap and fluid pressure applying attachment for fuel tanks of automotive vehicles, a cap member formed with an opening providing an inlet for fluid pressure to the interior thereof, a normally closed fluid pressure supply controlling valve structure for connection to a source of fluid pressure, said structure being anchored to the outer face of the cap member and discharging intosaid inlet, and a cap member latching element secured intermediate its ends to the inner face of the cap member relief and closure element slidably connected to` and depending from said cap member.

6. In a combined closure cap and fluid pressure applying attachment for fuel tanks of automotive vehicles, a cap member formed with an opening providing an inlet fory fluid pressure to the interior thereof, a normally closed iluid pressure supply controlling valve structure for connection to a source of fluid pressure, said structurebeing anchored to the outer face of the cap member' mediate the ends of the latter, and a vertically'r movable automatically shiftable combined relief and closure element slidably connected to the cap member. i

7. In a combined closure cap and iluid pressure applying attachment for fuel tanks of automotive vehicles, a cap member formed with an opening providing an inlet for fluid pressure to the interior thereof, a normally closed fluid pressure supply controlling valve structure for connection to a source of iluid pressure, said structure being anchored to the outer face of the cap member and discharging into said inlet, and a cap mem-v ber latching element secured intermediate its ends to the inner face of the cap member and provided with means to form afluid pressure conducting channel for directing the fluid pressure diametrically of the cap member and into the latter, said inlet opposing and opening into said channel, and an automatically shiftable l combined relief and closure element slidably connected to and depending with `said cap member.

8. In a combined closure cap and iluid pressure applying attachment for fuel tanks of automotive vehicles, a cap member formed with an opening providing an inlet for. fluid pressure to the interior thereof, a normally closedfluid pressure supply controlling valve structure for connection to a source of fluid pressure, said structure being anchored to the outer face of the cap member and discharging into said inlet, and a cap member l latching element havingthe upper face of an intermediate stretch thereof secured directly against the inner facev of the cap member said stretch being providedy in its upper face with a transversely disposed groove open at each end and forming a fluid pressure conducting channel opening at the sides of said stretch, said channel extendng diametrically with'respect to said cap member, and said inlet having its inner end discharging into said channel'adjacent the ends of the latter, and an automatically shiftable combined relief and closure element slidably connected to and depending from said cap member.

f ANTHONY A.,VARESE. 

